US8477069B2 - Portable electronic device and antenna thereof - Google Patents
Portable electronic device and antenna thereof Download PDFInfo
- Publication number
- US8477069B2 US8477069B2 US12/624,539 US62453909A US8477069B2 US 8477069 B2 US8477069 B2 US 8477069B2 US 62453909 A US62453909 A US 62453909A US 8477069 B2 US8477069 B2 US 8477069B2
- Authority
- US
- United States
- Prior art keywords
- section
- antenna
- location
- electronic device
- portable electronic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
- H01Q5/371—Branching current paths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
Definitions
- the present invention relates to a portable electronic device, and in particular relates to a portable electronic device satisfying HAC requirements with a decreased SAR value.
- SAR and HAC are indices that measure the extent of radiation influence upon human health and hearing aid equipment, respectively.
- a high SAR value resulting from electromagnetic wave radiation may cause human health problems.
- mobile phones must pass SAR requirements (e.g. FCC & CE requirements).
- HAC requirements e.g. FCC & CE requirements.
- Mobile phones with excessive HAC values hinder audiphone's functions.
- 50% of the mobile phones sold in North America by a manufacturer must pass HAC requirements.
- the antenna includes a radiator, a feed conductor and a ground conductor.
- the radiator includes a body and a element.
- An aperture is formed on the body, and the body encloses the aperture.
- the element is connected to the body and extended into the aperture, wherein the element is connected to the body at a location.
- the feed conductor is connected to the body, wherein a signal, fed to the body by the feed conductor, travels on the body, and passes the location to the element.
- the ground conductor is connected to the body.
- a path length from the feed conductor to the location is 1/4 ⁇ , wherein ⁇ is a wavelength of the signal.
- a path length from the feed conductor to the location is 1/2 ⁇ , wherein ⁇ is a wavelength of the signal.
- a portable electronic device wherein the feed conductor and the ground conductor electrically connect the body (antenna) to a circuit board thereof, and the antenna modifies an electric field distribution of the circuit board.
- the antenna of the embodiment of the invention modifies an electric field distribution on a ground layer of a circuit board, and reduces the electric field intensity around the amplifier to improve HAC and SAR performance.
- the HAC performance can be improved to level M3 (68.5 V/m).
- the antenna can be disposed near the amplifier of a portable electronic device, without negatively effecting HAC requirement of the portable electronic device.
- FIG. 1A shows an antenna of a first embodiment of the invention transmitting a first signal
- FIG. 1B shows the antenna of the first embodiment of the invention transmitting a second signal
- FIG. 2 shows detailed structure of a element of the first embodiment of the invention
- FIG. 3 shows a modified example of the first embodiment
- FIG. 4A shows a portable electronic device utilizing the antenna of the embodiment
- FIG. 4B shows the antenna of the embodiment disposed near an amplifier of the portable electronic device
- FIG. 5A shows an antenna of a second embodiment of the invention transmitting a first signal
- FIG. 5B shows the antenna of the second embodiment of the invention transmitting a second signal
- FIG. 6 shows detailed structure of a element of the second embodiment of the invention.
- FIG. 7 shows a modified example of the second embodiment.
- FIG. 1A shows an antenna 100 of a first embodiment of the invention transmitting a first signal.
- the antenna 100 comprises a radiator 110 , a feed conductor 120 and a ground conductor 130 .
- the radiator 110 comprises a body 111 and a element 112 .
- An aperture 113 is formed on the body 111 , and the body 111 encloses the aperture 113 .
- the element 112 is connected to the body 111 and extended into the aperture 113 , wherein the element 112 is connected to the body 111 at a location 114 .
- the feed conductor 120 is connected to the body.
- the first signal (for example, high frequency signal ranging from 1700 MHz to 3000 MHz), fed to the body by the feed conductor 120 , travels on the body 111 along a resonance path 101 , passes the location 114 to the element 112 , and travels on the element 112 along a path 102 .
- the ground conductor 130 is connected to the body 111 .
- a path length from the feed conductor to the location is 1/4 ⁇ , wherein ⁇ is a wavelength of the first signal.
- FIG. 1B shows the antenna 100 of the first embodiment of the invention transmitting a second signal.
- the second signal for example, low frequency signal ranging from 800 MHz to 1000 MHz
- the feed conductor 120 travels on the body 111 along a resonance path 103 enclosing the aperture 113 .
- the element 112 is substantially L-shaped.
- the element 112 comprises a first section 1121 and a second section 1122 , the first section 1121 is connected to the second section 1122 , the first section 1121 extends in a first direction Y, the second section 1122 extends in a second direction X, the first direction Y is perpendicular to the second direction X, and an end of the first section 1121 is connected to the location 114 .
- a line width of the first section 1121 is greater than a line width of the second section 1122 .
- a slot 115 is formed between the element 112 and the body 111 .
- the element 112 further comprises a bent portion 1123 , and the bent portion 1123 is formed on a free end of the second section 1122 .
- a notch 116 is formed on a side of the element 112 for resistance matching.
- FIG. 3 shows a modified example of the first embodiment, wherein the shape of the body 111 is modified, and a slot 117 is formed on a side of the body 111 to increase the resonance path 103 .
- FIG. 4A shows a portable electronic device 10 utilizing the antenna 100 of the embodiment.
- the portable electronic device 10 comprises a housing 1 and a circuit board (print circuit board) 2 .
- the feed conductor and the ground conductor electrically connect the body (antenna 100 ) to the circuit board 2 .
- the antenna 100 modifies an electric field distribution of the circuit board 2 to reduce an HAC value of the portable electronic device 10 .
- the antenna 100 can be disposed near an amplifier 3 of the portable electronic device 10 , without negatively effecting HAC recruitment of the portable electronic device 10 .
- the antenna of the embodiment of the invention modifies an electric field distribution on a ground layer of the circuit board, and reduces the electric field intensity around the amplifier to improve HAC and SAR performance.
- the HAC performance can be improved to level M3 (68.5 V/m).
- the antenna can be disposed near the amplifier of the portable electronic device, without negatively effecting HAC recruitment of the portable electronic device.
- FIG. 5A shows an antenna 100 ′ of a second embodiment of the invention transmitting a first signal.
- the antenna 100 ′ comprises a radiator 110 ′, a feed conductor 120 and a ground conductor 130 .
- the radiator comprises a body 111 and a element 112 ′.
- An aperture 113 is formed on the body 111 , and the body 111 encloses the aperture 113 .
- the element 112 ′ is connected to the body 111 and extended into the aperture 113 , wherein the element 112 ′ is connected to the body 111 at a location 114 ′.
- the feed conductor 120 is connected to the body.
- the first signal (high frequency signal), fed to the body by the feed conductor 120 , travels on the body 111 along a resonance path 101 ′, passes the location 114 ′ to the element 112 ′, and travels on the element 112 ′ along a path 102 ′.
- the ground conductor 130 is connected to the body 111 .
- a path length from the feed conductor 120 to the location 114 ′ is 1/2 ⁇ , wherein ⁇ is a wavelength of the first signal.
- FIG. 5B shows the antenna 100 ′ of the second embodiment of the invention transmitting a second signal.
- the second signal low frequency signal
- the feed conductor 120 travels on the body 111 along a resonance path 103 ′ enclosing the aperture 113 .
- the element 112 ′ is substantially L-shaped.
- the element 112 ′ comprises a first section 1121 ′ and a second section 1122 ′, the first section 1121 ′ is connected to the second section 1122 ′, the first section 1121 ′ extends in a first direction Y′, the second section 1122 ′ extends in a second direction X′, the first direction Y′ is perpendicular to the second direction X′, and an end of the first section 1121 ′ is connected to the location 114 ′.
- a line width of the first section 1121 ′ is greater than a line width of the second section 1122 ′.
- a slot 115 ′ is formed between the element 112 ′ and the body 111 .
- a notch 116 ′ is formed on a side of the element 112 ′ for resistance matching.
- FIG. 7 shows a modified example of the second embodiment, wherein the shape of the body 111 is modified, and a slot 118 and a slot 119 are formed on a side of the body 111 to increase the resonance path 103 ′.
- Resistance matching and bandwidth of the antenna of the invention can be modified by changing the shapes of the body, the aperture and the element.
- the path length from the feed conductor to the location can be within a range from 1/2 ⁇ to 1/4 ⁇ .
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Support Of Aerials (AREA)
- Telephone Set Structure (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
Description
Claims (20)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/624,539 US8477069B2 (en) | 2009-08-21 | 2009-11-24 | Portable electronic device and antenna thereof |
DE102009061203A DE102009061203A1 (en) | 2009-08-21 | 2009-12-23 | Portable electronic device and antenna for it |
DE102009060537A DE102009060537B4 (en) | 2009-08-21 | 2009-12-23 | SAR and HAC-reduced antenna for a portable electronic device |
TW099106570A TWI430508B (en) | 2009-08-21 | 2010-03-08 | Portable electronic device and antenna |
CN201010125156.4A CN101997164B (en) | 2009-08-21 | 2010-03-16 | Portable Electronic Devices and Antennas |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23576309P | 2009-08-21 | 2009-08-21 | |
US12/624,539 US8477069B2 (en) | 2009-08-21 | 2009-11-24 | Portable electronic device and antenna thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
US20110043421A1 US20110043421A1 (en) | 2011-02-24 |
US8477069B2 true US8477069B2 (en) | 2013-07-02 |
Family
ID=43604928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/624,539 Expired - Fee Related US8477069B2 (en) | 2009-08-21 | 2009-11-24 | Portable electronic device and antenna thereof |
Country Status (4)
Country | Link |
---|---|
US (1) | US8477069B2 (en) |
CN (1) | CN101997164B (en) |
DE (2) | DE102009060537B4 (en) |
TW (1) | TWI430508B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9287626B2 (en) | 2012-03-16 | 2016-03-15 | Huawei Device Co., Ltd. | Antenna and wireless terminal device |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101332846B1 (en) * | 2011-01-24 | 2013-11-27 | 주식회사 팬택 | Antenna for HAC in Wireless Communication Terminal |
CN102280685B (en) * | 2011-05-13 | 2014-07-09 | 惠州Tcl移动通信有限公司 | Designing and manufacturing method of mobile phone antenna, mobile phone antenna and mobile phone |
TWI504057B (en) * | 2012-05-23 | 2015-10-11 | Cho Yi Lin | Portable communication apparatus |
US9484633B2 (en) * | 2012-10-26 | 2016-11-01 | Nokia Technologies Oy | Loop antenna having a parasitically coupled element |
US10218077B2 (en) * | 2016-08-04 | 2019-02-26 | Te Connectivity Corporation | Wireless communication device having a multi-band slot antenna with a parasitic element |
CN107240774B (en) * | 2017-04-28 | 2023-10-17 | 歌尔股份有限公司 | Wearable device and control method thereof |
CN112421211B (en) * | 2019-08-23 | 2022-01-14 | 华为技术有限公司 | Antenna and electronic equipment |
Citations (16)
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US6195048B1 (en) | 1997-12-01 | 2001-02-27 | Kabushiki Kaisha Toshiba | Multifrequency inverted F-type antenna |
FR2811479A1 (en) | 2000-07-10 | 2002-01-11 | Cit Alcatel | CONDUCTIVE LAYER ANTENNA AND DUAL BAND TRANSMISSION DEVICE INCLUDING THIS ANTENNA |
US20040070537A1 (en) * | 2002-10-10 | 2004-04-15 | Kadambi Govind R. | Narrow width dual/tri ism band pifa for wireless applications |
US20040085244A1 (en) | 2002-11-06 | 2004-05-06 | Kadambi Govind Rangaswamy | Planar inverted-f-antenna (pifa) having a slotted radiating element providing global cellular and gps-bluetooth frequency response |
US6734825B1 (en) * | 2002-10-28 | 2004-05-11 | The National University Of Singapore | Miniature built-in multiple frequency band antenna |
US20040252061A1 (en) | 2003-06-11 | 2004-12-16 | Vance Scott Ladell | Looped multi-branch planar antennas having multiple resonant frequency bands and wireless terminals incorporating the same |
US6917335B2 (en) * | 2002-11-08 | 2005-07-12 | Centurion Wireless Technologies, Inc. | Antenna with shorted active and passive planar loops and method of making the same |
US20060244664A1 (en) | 2005-04-27 | 2006-11-02 | Samsung Electronics Co., Ltd. | Built-in type antenna apparatus for portable terminal |
US7183982B2 (en) * | 2002-11-08 | 2007-02-27 | Centurion Wireless Technologies, Inc. | Optimum Utilization of slot gap in PIFA design |
US20070247386A1 (en) | 2006-04-19 | 2007-10-25 | Samsung Electro-Mechanics Co., Ltd. | Multi-band u-slot antenna |
US7342545B2 (en) | 2006-02-28 | 2008-03-11 | Sony Ericsson Mobile Communications Ab | Antenna system configuration for mobile phones |
US20080231531A1 (en) | 2007-03-23 | 2008-09-25 | Research In Motion Limited | Antenna apparatus, and associated methodology, for a multi-band radio device |
US20080303731A1 (en) * | 2007-06-07 | 2008-12-11 | Hsin-Tsung Wu | Multi-band antenna |
US20090051595A1 (en) * | 2007-08-23 | 2009-02-26 | Research In Motion Limited | Multi-band antenna, and associated methodology, for a radio communication device |
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US20120176291A1 (en) * | 2011-01-07 | 2012-07-12 | Primax Electronics Ltd. | Input device for computer system |
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CN1761104A (en) * | 2004-10-15 | 2006-04-19 | 联发科技股份有限公司 | Dual-frequency antenna device, wireless communication device and radio frequency chip using the device |
-
2009
- 2009-11-24 US US12/624,539 patent/US8477069B2/en not_active Expired - Fee Related
- 2009-12-23 DE DE102009060537A patent/DE102009060537B4/en not_active Expired - Fee Related
- 2009-12-23 DE DE102009061203A patent/DE102009061203A1/en not_active Ceased
-
2010
- 2010-03-08 TW TW099106570A patent/TWI430508B/en not_active IP Right Cessation
- 2010-03-16 CN CN201010125156.4A patent/CN101997164B/en active Active
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US6195048B1 (en) | 1997-12-01 | 2001-02-27 | Kabushiki Kaisha Toshiba | Multifrequency inverted F-type antenna |
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US6496148B2 (en) | 2000-07-10 | 2002-12-17 | Alcatel | Antenna with a conductive layer and a two-band transmitter including the antenna |
US20040070537A1 (en) * | 2002-10-10 | 2004-04-15 | Kadambi Govind R. | Narrow width dual/tri ism band pifa for wireless applications |
US6734825B1 (en) * | 2002-10-28 | 2004-05-11 | The National University Of Singapore | Miniature built-in multiple frequency band antenna |
US20040085244A1 (en) | 2002-11-06 | 2004-05-06 | Kadambi Govind Rangaswamy | Planar inverted-f-antenna (pifa) having a slotted radiating element providing global cellular and gps-bluetooth frequency response |
US6917335B2 (en) * | 2002-11-08 | 2005-07-12 | Centurion Wireless Technologies, Inc. | Antenna with shorted active and passive planar loops and method of making the same |
US7183982B2 (en) * | 2002-11-08 | 2007-02-27 | Centurion Wireless Technologies, Inc. | Optimum Utilization of slot gap in PIFA design |
US20040252061A1 (en) | 2003-06-11 | 2004-12-16 | Vance Scott Ladell | Looped multi-branch planar antennas having multiple resonant frequency bands and wireless terminals incorporating the same |
US7504998B2 (en) | 2004-12-08 | 2009-03-17 | Electronics And Telecommunications Research Institute | PIFA and RFID tag using the same |
US20060244664A1 (en) | 2005-04-27 | 2006-11-02 | Samsung Electronics Co., Ltd. | Built-in type antenna apparatus for portable terminal |
US7342545B2 (en) | 2006-02-28 | 2008-03-11 | Sony Ericsson Mobile Communications Ab | Antenna system configuration for mobile phones |
US20070247386A1 (en) | 2006-04-19 | 2007-10-25 | Samsung Electro-Mechanics Co., Ltd. | Multi-band u-slot antenna |
US20080231531A1 (en) | 2007-03-23 | 2008-09-25 | Research In Motion Limited | Antenna apparatus, and associated methodology, for a multi-band radio device |
US20080303731A1 (en) * | 2007-06-07 | 2008-12-11 | Hsin-Tsung Wu | Multi-band antenna |
US20090051595A1 (en) * | 2007-08-23 | 2009-02-26 | Research In Motion Limited | Multi-band antenna, and associated methodology, for a radio communication device |
US20120176291A1 (en) * | 2011-01-07 | 2012-07-12 | Primax Electronics Ltd. | Input device for computer system |
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FCC Consumer Facts "Hearing Aid Compatibility for Wireless Telephones;" HAC 1988; 8.10.2008; pp. 1-6. |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9287626B2 (en) | 2012-03-16 | 2016-03-15 | Huawei Device Co., Ltd. | Antenna and wireless terminal device |
Also Published As
Publication number | Publication date |
---|---|
TW201108503A (en) | 2011-03-01 |
TWI430508B (en) | 2014-03-11 |
DE102009060537B4 (en) | 2013-05-23 |
CN101997164B (en) | 2014-07-16 |
CN101997164A (en) | 2011-03-30 |
US20110043421A1 (en) | 2011-02-24 |
DE102009060537A1 (en) | 2011-02-24 |
DE102009061203A1 (en) | 2012-09-20 |
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